How is the sealing of the check valve achieved?

The sealing of the check valve is a carefully designed and manufactured process, which ensures that the valve can form a reliable seal when closed to prevent the backflow of the medium.

The valve core is one of the key components of the check valve, and its design has a direct impact on the sealing performance. The design of the 90° conical valve core not only allows the valve core to smoothly fit with the valve seat when closed, but also allows the valve core to automatically adjust its position when subjected to medium pressure through the tapered slope to better fit the valve. seat to enhance the sealing effect. In addition, the tapered design also allows the valve core to quickly remove impurities and particles in the medium when closing, keeping the sealing surface clean and extending the sealing life.

The synthetic sealing ring is an important sealing component installed between the valve core and the valve seat. It is made of special synthetic material with good elasticity and wear resistance. When the valve core is closed, the synthetic sealing ring is squeezed and deformed to fill the tiny gap between the valve core and the valve seat, forming a tight sealing barrier. This design can effectively prevent the medium from leaking from between the valve core and the valve seat, ensuring the sealing performance of the check valve.

In addition to the design of the valve core and sealing ring, the positioning of the valve core opening is also a key factor affecting sealing performance. By precisely controlling the positioning of the valve core opening, it can be ensured that the valve core can move smoothly when opening and accurately combine with the valve seat and sealing ring when closing. This positioning technology can not only improve the reliability of the seal, but also reduce the vibration and noise of the valve core when closing, and improve the working stability of the check valve.

Finally, the sealing performance of the check valve is closely related to its material and manufacturing process. High-quality carbon steel or stainless steel has excellent strength and corrosion resistance, and can withstand high media pressure and temperature. The fine processing technology can ensure the matching accuracy between the valve core, valve seat and sealing ring, reducing the possibility of leakage. In addition, during the manufacturing process, the check valve also needs to be strictly inspected and tested to ensure that its sealing performance meets the design requirements.

To sum up, the check valve achieves reliable sealing performance through various technical means such as unique valve core design, application of synthetic sealing rings, and precise valve core opening positioning. This design not only ensures the sealing effect of the check valve under normal working conditions, but also resists the wear of the sealing surface by impurities and particles in the medium to a certain extent, thereby extending the service life of the check valve. At the same time, high-quality materials and fine manufacturing processes also provide a strong guarantee for the sealing performance of the check valve.